TABLE OF CONTENTS 
The Intensity of the Earth’s Penetrating Radiation at 
Different Altitudes and a Secondary Radiation Ex- 
cited by it. By Pror. J. C. McLennan and E. N. 
NEC AMP MS BU Ata as ARR et a Re LE 
The Number of Electrons in Atoms. By Pror. H. A. 
NÉS ON See etn st SUR an cn a 25. be 
The Relation Between the Current from Hot Platinum in 
Air at Atmospheric Pressure and the Electric Force. 
BYSRBONPEL ES NNILSON, : NP re 
On the Coefficient of Absorption by Air of the Beta Rays 
jrom, hadwun Co. By /PROr: ASS. ME EE ne. 
On the Number of Ions Produced by the Beta Rays and by 
the Gamma Rays from Radium C. By Pror. A. 5. 
ONE EE SEA ER RS PRO TP RARE 
Algebraic Proof of the Existence of the Power Series Re- 
presenting the Branches of an Algebraic Function. 
BMPBOR JC. PDU LDS RUE own ee Ue ea Sn: 
Note on the Cosine Law of Radiation. By Louis V. 
TRS OA à PA EN ER ARR NES LR RER 
Absorption Problems in Radioactivity. By Louis V. 
JR LE A EL 2 Aa ad Sa So SAT PEAR EEE A 
Methods and Preliminary Results in the Spectroscopic 
Determination of the Solar Rotation. By J. S. 
Praskerr BA and RoE. De Lury, Pr D... 
Progress of the Tide in Deep Inlets and Ordinary Estu- 
AE BELL DAWSON, MAS EE 5 
Magnetic Observations in Canada made by authority of 
the Department of Marine and Fisheries. By W. 
HE NMEDACRSON RARE RSS TR RS AS 
- SECTION IV. 
Presidential Address. By Lawrence M. Lamps, F. 
Notes on Fossils formed in certain Metamorphic Rocks of 
Southern New Brunswick. By R. W. Exus, LL.D. 
Three Years’ Analyses of Ottawa River Water. By F. 
CA RRISONS DESC, UN amen i aise alts ees = 
The Bacterial Content of the Normal Udder. By F. C. 
HARRISON and ALFRED SAVAGE 
My ae si ile) pecan tay eee! > [ele ie Kor sa 
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